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cle chamber

  1. txbass97

    Firearms MK12 Douglas Barrel 18" 5.56 NATO CLE Chamber 1:7 twist

    *Brand new* 18" Douglas Stainless Steel 5.56 NATO 1:7 twist barrel CLE chambered by Ross Precision Machine with a CLE chambering. After Compass Lake Engineering stopped selling barrels to the public, Paul Ross opened his own shop and is now chambering his own barrels with the 'CLE' chamber...
  2. BuildingConceptsllc

    Headspacing on 2 different AR barrels: need some input:

    So, I have 2 AR's with Bart barrels. They were chambered by 2 different smith's and have 2 different headspaces. They are .005" apart, one from the other. The shorter of the two chambers is in my "precision ar" and the longer is in more of an all around AR with a 1-10 razor on it. (1.464" ) &...